Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-K filed 2026-09-28, as of 2026-09-28)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | NAII · NASDAQ | 22,113,000 | 2,276,442 | 10.3% | 23 | 638842302 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (23 of 23 · 638842302)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | CALDWELL SUTTER CAPITAL, INC. | 498,220 | 2.25% | $1.2M | -572 (-0.1%) |
| 2 | DIMENSIONAL FUND ADVISORS LP | 335,789 | 1.52% | $803K | -18,950 (-5.3%) |
| 3 | MORGAN STANLEY | 307,630 | 1.39% | $735K | +39,380 (+14.7%) |
| 4 | Mink Brook Asset Management LLC | 293,447 | 1.33% | $701K | -262 (-0.1%) |
| 5 | RENAISSANCE TECHNOLOGIES LLC | 277,457 | 1.25% | $663K | -13,899 (-4.8%) |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 210,880 | 0.95% | $504K | — |
| 7 | CITADEL ADVISORS LLC | 75,746 | 0.34% | $181K | +32,038 (+73.3%) |
| 8 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 61,495 | 0.28% | $147K | -13,821 (-18.4%) |
| 9 | Integrated Wealth Concepts LLC | 44,093 | 0.20% | $105K | +32,093 (+267.4%) |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 43,711 | 0.20% | $105K | -8,694 (-16.6%) |
| 11 | VANGUARD FIDUCIARY TRUST CO | 27,095 | 0.12% | $65K | — |
| 12 | Empowered Funds, LLC | 24,906 | 0.11% | $60K | — |
| 13 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 19,915 | 0.09% | $48K | NEW |
| 14 | HRT FINANCIAL LP | 17,596 | 0.08% | $42K | NEW |
| 15 | STATE STREET CORP | 11,663 | 0.05% | $28K | — |
| 16 | NewEdge Advisors, LLC | 10,022 | 0.05% | $24K | — |
| 17 | JAMES INVESTMENT RESEARCH, INC. | 10,022 | 0.05% | $24K | — |
| 18 | Vanguard Global Advisers, LLC | 2,819 | 0.01% | $7K | — |
| 19 | Tower Research Capital LLC (TRC) | 2,028 | 0.01% | $5K | +918 (+82.7%) |
| 20 | ROYAL BANK OF CANADA | 1,253 | 0.01% | $3K | +1,222 (+3941.9%) |
| 21 | CITIGROUP INC | 649 | 0.00% | $2K | -1,342 (-67.4%) |
| 22 | SBI Securities Co., Ltd. | 5 | 0.00% | $12 | — |
| 23 | HUNTINGTON NATIONAL BANK | 1 | 0.00% | $2 | — |
Exited since 2026-03-31 (1 filers; largest 1 shown)
| GILL CAPITAL PARTNERS, LLC | −7 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| Dimensional Fund Advisors LP | SCHEDULE 13G/A | 2026-01-21 | 2025-12-31 | 384,497 | 6.2% |
| Renaissance Technologies Holdings Corporation | SCHEDULE 13G/A | 2025-02-13 | 2024-12-31 | 309,256 | 4.99% |
| Renaissance Technologies LLC | SCHEDULE 13G/A | 2025-02-13 | 2024-12-31 | 309,256 | 4.99% |
| CALDWELL SUTTER CAPITAL, INC. | SCHEDULE 13G/A | 2025-02-11 | 2024-12-31 | 460,638 | 7.4% |
| Joseph F. Helmer | SCHEDULE 13G/A | 2025-02-11 | 2024-12-31 | 480,449 | 7.8% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.